CN200948998Y

CN200948998Y - Permanent-magnet gearless elevator traction machine with high sampling accuracy and labour-saving jigger mechanism

Info

Publication number: CN200948998Y
Application number: CN 200620084685
Authority: CN
Inventors: 郭自刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-05-20
Filing date: 2006-05-20
Publication date: 2007-09-19
Anticipated expiration: 2016-05-20

Abstract

A gearless permanent magnet elevator traction machine for elevator with high sampling precision and a labor saving jigger device comprises a base, a permanent magnet motor, a traction sheave linked with the rotor axis of the motor, an arrester with brake arms, a front cover on front of the traction sheave and a jigger device. The device is characterized in that unmovable gearwheels are linked with the traction sheave or the rotor axis of the motor; a movable auxiliary gear axle or revolving axle is fixed on the front cover on which a pinion is installed to work with the gearwheel; an encoder with low differentiate rate is coated on the auxiliary gear axle or revolving axle; a movable jigger hand wheel is linked with the outside end of the auxiliary gear axle or revolving axle. Compared with prior art, on condition of low cost and encoder with low differentiate rate, the utility model can increase the sampling precision and solve the problem that gearless permanent magnet elevator traction machine can not be jigged manually to save labor.

Description

Permanent magnetism gearless elevator drag machine with high sampling precision and laborsaving barring mechanism

Technical field

The utility model relates to a kind of elevator traction machine improvement technology, and a kind of employing lower resolution encoders of improvement type but has the permanent magnetism gearless elevator drag machine of high sampling precision and laborsaving barring mechanism specifically.

Background technology

The coder of at present general gearless elevator drag machine all is direct and main shaft (machine shaft) links, because the gear case part that connects in the middle of the gearless elevator drag machine saves, therefore the rotating speed of itself is all very low, generally between 50-200rpm/min, in order to guarantee the sampling precision of elevator, so just need be high-resolution in the selection of coder, be generally 2048PPR and 4096PPR.But in the selection of coder, resolution is expensive more just expensive more.Resolution be the coder price of 2048PPR at 2200-3000 yuan, resolution be the price of 4096PPR about 3000-4000 unit, the rising that the cost price of resolution more than 4096PPR then almost also will be at double.On the other hand, along with the passenger to improving constantly that the elevator comfort level requires, elevator device requires just high more to the sampling precision of towing machine, the resolution of coder is also just improved again and again; On the other hand, owing to have gear case speed change, jiggering moment to obtain amplifying, can go up the direct mount jigger wheel for cogged elevator traction machine at electric machine main shaft (rotating shaft), rotatable disc wheel when accident takes place, by change speed gear box just can be easily with the lift car dish to perch.And all be direct connection between the electric machine main shaft of gearless elevator drag machine and the traction sheave, there is not speed reduction gearing, jiggering moment can not be amplified, and is difficult to elevator is dragged by manpower.

The utility model content

Main purpose of the present utility model is to provide the permanent magnetism gearless elevator drag machine of high sampling precision of having of a kind of improvement type and laborsaving barring mechanism, make under the situation of the lower resolution encoders that adopts low-cost price, still can improve the employing precision of elevator encoder, be the problem that can not carry out laborsaving jiggering by manpower that can also solve gearless machine in another purpose of utility model.

The utility model is realized with following technical scheme: it comprises support, magneto-electric machine, main shaft (machine shaft), traction sheave with the motor rotor shaft interlock, drg with brake control lever, be positioned at the front end cover and the barring mechanism of traction sheave front side, it is characterized in that in the big gear wheel that is fixedly connected with on the traction sheave or on the motor rotor shaft with its synchronous interaction, on front end cover, be movably installed with an auxiliary pinion shaft or little rotating shaft, having a miniature gears in pinion shaft or little rotating shaft is meshed with described big gear wheel, in pinion shaft or little rotating shaft, be set with the coder with the low resolution of its interlock, also be socketed with handwheel with its synchronous interaction to constitute the labour-saving barring mechanism in that the axially outer end of pinion shaft axially outer end or little rotating shaft is movable in addition.

In the specific implementation, above-mentioned technical solution of the present utility model also can further be specially:

One, the coder of described low resolution is that to select resolution for use be the ring type coder of 200～600PPR, and its inner ring sleeve is contained on the pinion shaft or in the little rotating shaft, its outer shroud is locked in (accompanying drawing slightly) on the front end cover.

Two, the described big miniature gears that is meshed all adopts helical spur gear, and to reduce the noise of gear mesh, the transmitting ratio of big miniature gears should be greater than 8 (transmitting ratio can be chosen by the actual samples accuracy requirement).

Principle of work of the present utility model is as follows: when the elevator normal operation, to drive with the big gear wheel of motor rotor shaft or traction sheave interlock and its ingear miniature gears carries out the transmission of large speed ratio, be set in the little rotating shaft or the coder on the pinion shaft carries out high rotational speed thereby also drive, play the purpose that increases sampling precision.When the transmitting ratio i of big miniature gears greater than 10 (as i=12 time), the resolution of coder can be reduced to 200～400PPR from 2048PPR (or 4096PPR), even need high-resolution occasion, generally select for use resolution just enough about 600PPR, so just greatly reduce cost.

After cover in pinion shaft or the little rotating shaft connects handwheel,, make the moving lift car of artificial energy dish by constituting (or formation) a kind of moment enlarger between big pinion drive and the traction sheave.So, when elevator generation accident, when lift car can't reach the desired location, can go up cover at pinion shaft (or little rotating shaft) and connect handwheel, by artificial disc Moving plate driver wheel, handwheel drives pinion rotation, and miniature gears drives with its ingear big gear wheel and rotates, this moment, big miniature gears played deceleration force amplifier mechanism, can like a cork car be moved to correct position.

Compared with the prior art, the utility model still can improve the sampling precision of elevator encoder under the situation that adopts low-cost price and lower resolution encoders, can solve the problem that can not carry out laborsaving jiggering by manpower of gearless machine again.

Description of drawings

Fig. 1 is the organigram of a kind of permanent magnetism gearless elevator drag of the utility model machine host part.

The specific embodiment

With reference to accompanying drawing as can be known, concrete structure of the present utility model comprises: 1～casing stator, 2～rotor, 3～rotor shaft, 4～traction sheave, 5～big gear wheel, 6～miniature gears, 7～front end cover, 8～pinion shaft (or little rotating shaft), 9～coder, 10～handwheel.The concrete annexation of each parts in its structure is as follows: the front end at traction sheave 4 is fixedly connected with big gear wheel, attaching has the pinion shaft (or fixed cover is equipped with the little rotating shaft of miniature gears) of band miniature gears on front end cover, big miniature gears is meshing with each other, and is being set with coder 9 (outer shroud of coder 9 is locked on the front end cover 7) on the pinion shaft.Also movable sleeve is connected to a handwheel 10 in outer end that pinion shaft is installed coder.Handwheel 10 can be laid down when using at ordinary times, when elevator has accident to need jiggering, install handwheel 10 again.For reducing the noise of gear mesh, big miniature gears all adopts helical spur gear.

Claims

1, a kind of permanent magnetism gearless elevator drag machine with high sampling precision and laborsaving barring mechanism, comprise support, magneto-electric machine, traction sheave (4) with the motor rotor shaft interlock, drg with brake control lever, be positioned at the front end cover (7) and the barring mechanism of traction sheave front side, it is characterized in that: in the big gear wheel (5) that is fixedly connected with on the traction sheave or on the motor rotor shaft with its synchronous interaction, on front end cover (7), be movably installed with an auxiliary pinion shaft (8) or little rotating shaft, having a miniature gears (6) in pinion shaft or little rotating shaft is meshed with described big gear wheel (5), in pinion shaft or little rotating shaft, be set with the coder (9) with the low resolution of its interlock, be connected to handwheel (10) with its synchronous interaction at the axially outer end movable sleeve of pinion shaft axially outer end or little rotating shaft.

2, the permanent magnetism gearless elevator drag machine with high sampling precision and laborsaving barring mechanism according to claim 1, it is characterized in that described coder is that to select resolution for use be the ring type coder of 200～600PPR, its inner ring sleeve is contained on the pinion shaft or in the little rotating shaft, its outer shroud is locked on the front end cover.

3, the permanent magnetism gearless elevator drag machine with high sampling precision and laborsaving barring mechanism according to claim 1 is characterized in that the described big miniature gears that is meshed is helical spur gear, and the transmitting ratio of big miniature gears is greater than 8.